The tip of Yoshi’s fin is hurt. One of my mollies likes to pick at it (why????) so I guess she just did it a little worse than usual. Poor baby.
Because most livebearers are good and innocent, but there are always a rude one that nips everything with long fin. They are the weirdest fishes ever haha
She’s not at all aggressive towards him. It seems like curiosity? Sometimes she just. Puts the tip of his fin in her mouth and nibbles it for a second. Yoshi doesn’t even care.
I just posted a video with her doing it